Musannaf Ibn Abi Shaybah 6725 — Those who said: pray standing in it

Humayd said: "Sayyiduna Anas bin Malik (may Allah be pleased with him) was asked about praying in a ship. Abdullah bin Abi Utbah, the freedman of Sayyiduna Anas, who was sitting with us, said: 'I travelled with Sayyiduna Abu Sa'id al-Khudri, Sayyiduna Abu al-Darda and Sayyiduna Jabir bin Abdullah (may Allah be pleased with them)' (Humayd said: he also named some other people), 'and our imam used to lead us in prayer standing in the ship, and we prayed behind him standing, although had we wished, we could have brought the ship to shore and gone out.'"